---What will you do next Sunday?
---Maybe do some shopping, for I ______ go to school on Sunday.
| A．mustn’t | B．can’t | C．don’t have to | D．had better not |
—Would you mind closing the window to keep out the noise?
—________．I’ll do it right away．
| A．No way | B．Of course | C．Pretty good | D．Not at all |
There are about ______ people in the park on National Day.
| A．three hundred | B．three hundreds |
| C．three hundred of | D．three hundred more |
We found ______ very difficult for the children to understand what the chairman said at the meeting.
| A．that | B．its | C．this | D．it |
．________ useful book is helpful to ________ artist.
| A．An, an | B．A, a | C．A; an | D．An; a |
Sometimes the best and most beautiful things in this world ________．but can be felt with the heart．
| A．can see | B．cannot see | C．can be seen | D．cannot be seen |